Radiator



July 7, 1931.

I c. OPPE .CHARLES OPPE, or NEW ems,

-'-' iflexing of the plate while in use.

Patented Jul 7.1931

UNIT D STATES- FACTURING COMPANY, on NEW HAVEN, CONNECTICUT I RADIATOR Applicationfilekl July 8. 1927. Serial No. 204,366.

This invention relates to radiators, and more particularly to a radiator suitable for use in connection with aninternal combustion engine for cooling the water, or other liquid, used for cooling the engine.

Such radiators, andespecially. thoseaused upon automobile trucks, often consist of cast. metal top and bottom tanks and'side col-, umns,1into which the cooling cores are bolt ed through the medium of header plates through which the ends of the water tubes eliminated, or at least reduced to a minimum. r

In a specific aspect, it is an object of the invention to provide a 'reenforcingf means for header plates adapted to dampen the Another object of the invention is to provide a relatively light headerplate' having reenforcing means attached thereto, and having the same stiffness and rigidity .iagainst'flexing while in use, as is provided by the use of heavier, and correspondingly more expensive, header plates.

To these and other ends, the invention consists in the novel features and combinat f t t h ft 'b d d Ion pm 0 e erema er aesgm an produced forthemost part bytheuneven f ness of roads, causes a diaphragm action I claimed.

In the drawings, r Fig. 1 is a front elevation of a radiator, broken away to show a header plate, ac-

cording to my invention,,supporting the upper ends of the cooling tubes;

Fig. '2 is a. fragmentary plan view of a header plate, showing one form of cooling tubes arranged therein;

Fig. 3 is a sectional view along line 3 3 of Fig. 2; H Fig. 4 is a view similar to Fig. 2, but showing a different arrangement of cooling tubes; I I 1 Fig. 5 is a sectional view, along line 5-5 I of Fig. 4:;

ATENT QF I connnorrcu'r, assienon TO. THE G 85 o Mano- Fig. 6 is a view of. a header plate, with I stilll another arrangement of coolingtubes; Fig. 7 is a sectionalview, takenalongline' 7-7 of Fig. 6.

Referring to the drawings in-which have shown a preferred embodiment of my invention, the reference numeral 8 indicates, in general, a truck radla-tor, having an upper. tank 9, a lower tank 10, side columns 11 r and 12', header plates 13 and 14, and cooling 7 tubes extending through the header plates 13 and 14 and into the interior of tanks 9 and 10. I

Each 'of the header plates 13 and l lis preferably made of relatively thin metal having appropriate holes punched or 'otherw1se produced therein, and the cooling tubes being received in and extending through 1 the holes. In the form shown in Fig. 2, the

header comprises a plate'13-l1aving elongated openings 16,and around the openings 16 the metal ofthe plate is displaced'upwardly to form flanges 17, through which openings'loextend. Tubes 15 arereceived injthe openings 16 and may be secured therein by soldering, ifdesired/ It will benoted that the tubes constituting on and between the header plates, the latter 8O the water core of the radiator are supported 1 being securedinthe flradiator'by" being clamped thereinaround their edges. The

constant vibratorymovement of theftubes,

of the header. plates which in time brings about a rupture in these plates due to fatigue of the metal of which they "are made. In addition, the plates are flexed bythe constantexpansion and contraction of the tubes necessary that these plates to .a certainxextent be flexible, but in order to prevent unj I i due flexing of the header plate 123, and the corresponding lower header plate (herein not shown in detail.) and to increase the rigidity thereof the desired amount, I propose to secure to these plates stiffening means which, in the preferred embodiment disclosed, takes the form of wires or rods 18, soldered, or otherwise secured, to the surfaces of the plates. These wires may be arranged to extend across the weakest portions of the plates or at right angles to the bending axis of the plate in flexing. As shown in Fig. 2, a single wire is used between the tubes 15, i l 'ch are relatimly long and narrow in cross iection.

In Fig. -11 I have shown header plate 1?) having a diil'erent type of tubes secured therein, and between the adjacent rows of tubes are rods 18 soldered, or otherwise secured, to the plate 13.

6 shows another arrangement o'l radiator cooling tubes in which the tubes are placed in diagonal rows, and the wire 18" is soldered on the heath-1r plate 113 in a die onal position between the tubes.

I have found that from five to nine wires on each plate will generally produce the desired result, but it will be readily under stood that the wires are soldered on the header plates in such numbers as may be required, and so arran ed as to oppose and dampen the bending or flexing of the plates While in use. Although in Figs. 2, 4 and 6, it appears that the wires do not extend the entire width of the plate, it will be understood that when the plates are secured in the radiator the plate clamping means extends over substantially adjacent to the ends of the wires.

It will be understood that although I have described the means for fastening the wires or rods to the plates as soldering, it would be within the scope of the invention to braze or weld the rods thereon, and while I have found that round wires are highly effective in dampening the flexing of the plates while still leaving them to a certain extent flexible, it would also be within the scope of the invention to use other types of stiil'ening means in place of the wires; for instance, rods of various other types of cross-sec? tion.

While I have shown a preferred embodiment. of my invention, it will be understood that the same is not to be limited to the s cific details shown, but is capable of modi cation and variation within the spirit of the invention and the scope of the appended claims.

What I claim is:

1. A header for a radiator comprisinga relatively long thin metal plate, and rod-like stiffening means secured to said plate, said stifl'ening means extending substantially at right anglesto the length of said plate.

2. A header for a radiator comprising a relatively long thin metal plate, and independently formed stiffening means secured to said plate, said stiffening means extending generally at right angles to the length of said plate and being of relatively small cross-sectional area.

3. A header for a radiator comprising a relatively thin metal plate, said metal plate being provided with aligned rows of holes adapted to receive cooling tubes therein, and flexible vibration dampening elongated members secured to the surface of said plate between said holes.

4. A header for a radiator comprising a relatively thin metal plate, and flexible wires soldered to said plate transversely thereof and adapted to dampen vibrations therein.

5. In a radiator, an elongated header plate made of relatively thin metal, holes in said plate adapted to receive cooling tubes therein, and independently formed rod-like stiffening elements securedv to the surface of said plate between said holes, said stili ening elements extending substantially across said plate, and substantially at right angles to the longest dimension thereot In witness whereof, I have hereunto set my hano this 1st day of July, 1927.

CHAS. OPPE. 

